Self-threading loom-shuttle.



F. A. GUILLETTE.

SELF THREADING LOOM SHUTTLE.

APPLICATION FILED MAY 14. 1913 1 1 54,0 1 1 Patented Sept. 21, 1915.

2 SHEETSSHEET l.

ammo

Zrea J 60/7/6775 I my COLUMBIA PLANOGRAPH C0..WASH1N GGGGGGG c.

F. A. GUILLETTE-- SELF THREADING LOOM SHUTTLE.

APPLICATION FILED MAY 14. 1913.

1 1 54,0 1 1 Patented Sept. 21, 1915.

2 SHEETS-SHEE12.

ENLII lllllllllilli wi bneowo W file comm;

arena SELF-THREADING LOOM-SI-IUTTLE.

Application filed May 14, 1913.

To all whom it may concern:

Be it known that I, FRED A. GUILLETTE, a citizen of the United States, residing at Taunton, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Self-Threading Loom-Shuttles, of which the following is a specification.

This invention relates to loom shuttles of the self-threading type, and has for its object an improvement in shuttles of this character which is intended to secure reliability and certainty in the self-threading operation.

In carrying out its general object of securing certainty of action in the self-threading operation of the shuttle, the present invention contemplates a novel construction and arrangement of parts which adapt the shuttle for use either as a right hand or left hand shuttle, while at the same time providing means whereby the shuttle will readily and easily thread itself while in flight.

Another object of the invention is to provide a self-threading device for loom shuttles which requires practically no alteration in the construction of the shuttle body and a minimum amount of cutting the same, which is an advantage over constructions wherein it is sometimes necessary to cut and slit the delivery head of a shuttle body to such an extent as to materially weaken and otherwise damage the same.

Another and distinct object of the present invention is to provide a self-threading device having what is termed a top delivery eye for the thread or filling, as distinguished from the side delivery eye which is almost universally used. By reason of the provision of a top delivery eye for the thread or filling, the present invention possesses a marked advantage over the side delivery eye types of shuttles, not only in the particular of adapting the shuttle for right or left use, but also because the improved construction prevents the cutting of the filling or thread which often happens in the side delivery shuttles since-with the latter the filling thread strikes between the shuttle and the swell or binder of the shuttle box and is frequently cut or broken thereby. Fur thermore, in the side delivery eye shuttles many cuts of cloth are spoiled by reason of the thread being soiled by oil when it strikes Specification of Letters Patent.

Patented Sept. 21, 1915.

Serial No. 767,731.

between the shuttle and the swell or binder of the shuttle box. 7

A special object of the invention is to provide a self-threading guide for loom shuttles which positively causes the thread to automatically be threaded into the guide on the first throw of the shuttle across the loom.

With these and many other objects in view which will readily appear as the descrlption progresses, the invention consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

The essential features of the invention involved in carrying out the objects above indicated are necessarily susceptible of embodiment in different forms of construction without departing from the spirit or scope of the invention, but for illustrative purposes, several preferred and practical forms of the invention are shown in the accompanying drawings in which Figure 1 is a perspective view of the delivery end portion of a loom shuttle having fitted thereto a preferable form of selfthreading guide constructed in accordance with the present invention. Fig. 2 is a central vertical longitudinal sectional view of the form of the invention shown in Fig. 1. Figs. 3 and 4 are details perspective and side views respectively of the preferred form of self-threading guide shown in Figs. 1 and 2. Figs. 5 and 6 are top plan and longitudinal sectional views respectively of the delivery end portion of a loom shuttle fitted with a simplified form of self-threading guide embodying the present invention. Fig. 7 is a detail in perspective of the form of guide illustrated in Figs. 5 and 6. Fig. 8 is a detail in perspective of another form of guide that may be employed. Fig. 9 is a cross sectional view of the form of guide shown in Fig. 8, on the line 99. Fig. 10 is a detail in perspective of still another form of guide that may be utilized in carrying out the present invention. Fig. 11 is a cross sectional view on the line 1010 of Fig. 10.

Like reference characters designate corre sponding parts in the several figures of the drawings. V

The practical and fundamental features of the invention are well exemplified by the form of the device illustrated in Figs. 1, 2,

3, and i of the drawings, and-referring first to these figures, it vvillbe observed that the numeral 1 designates the shuttle body of the ordinary conventional construction. The shuttle body is provided with'the usual longitudinal-recess 2 which accommodates the bobbin 3 for the filling thread and also with the usual delivery headft, through which the filling thread is supplied to the loom as the shuttle travels across the-same.

Accprding to the present invention it is proposed to deliver the filling thread, desig- V nated by the letter a in the drawings, from the 'top to the longitudinal center of the delivery llQflClit of the shuttle body. That is to say, it is proposed to have the delivery eye for the filling thread located not only in and at; the top of the shuttle head 4, but" also centrally between the sides of said head so as to lie in the plane of 'thevertical central longitudinalaxis of the shuttle body.

This feature is present in all forms of the invention, and the form'of the device shown in Figs. 1 to i inclusive of the drawings, the: same is taken care of by properly ;positioning the device within the delivery end por- .1 tionof the shuttlebodyi The said device as shown in these figures of the drawings primarily includes a guide sleeve or tube, designated by the numeral 5,and preferably consisting of a metal tube of short length.

This guide sleeve or tube 5 is open at both *shu-ttle'head l at the delivery end of the bobbin recess 2. The said bracket or bracket plate 8 is accurately positioned in its seat 12within the head l of the shuttle body so that the delivery eye 10 at one end of the angular slit 7 lies within the plane of the v vertical longitudinal aXis of the shuttle body, andvis also disposed at'the top of the shuttle head to provide the central top deliveryr'eye herein referred to.

be observed that the receiving eye 9 in the bracket or bracket plate 7"is formed in the,

vertical leg of such plate so as to be exposed with-in the end portion "of the bobbin recess3' and receives the filling thread m from the bobbin. Itis also to be observed that the slit 7 between the lowere-ye 9 and the "upper eye 10, by reason of its angular characteristic is disposedeccentricallyatone Also it will side of the plane of the vertical longitudinal axis of theshuttle body, andther'efore' acts to deflectthe filling thread downwardly and inwardly toward the longitudinal center or axis oftheshuttle body whereby said thread will pass through theflongitudinal' side ,thr eading slot 6 of the guide sleeve or tubev 5 and-thus become engagedwithin thesaid sleeve ortube. 1 The gu'idesleeveor tube 5 is rigidlyffitted to the angular bracket or bracket plate8 in any suitable manner, such for instance as by a bolt or screw. connection 13, though soldering or brazing may be resortedto in the practical manufactureof the device regardless of :the-mannerof securing the guide sleeve or tube 5 to the brackets. The said" i sleeve or tube'is arranged inside of the angle of the bracket and is disposed obliquely to the longitudinal axis of the shuttle body, so thatthe' loweror inner end of the sleeve or tube 5 communicates with and is in effect a part of the receiving eye 9, while the outer:

or upper end of the said sleeve or tube 5' is correspondingly n communication with' and is'inefi'ect-a 'part of the delivery eye 10 of the-device. V 7 It is by reason of the construction described thatthe shuttle while in flight will:

become automatically threaded, since the disposition of the angular slit 7 with reference to the slot 6 and the eyes 9 and '10 causes the filling thread to automatically seek a centered position which can 'onlybe reached through the slit? and the slot 6 into-the sle'eve'or tube 5. r v

In the normal operation of the shuttle,

the filling thread Which pays out through i the guide sleeve5 is held under proper tension and prevented -fr0m='slacking back into the bobbin recess by means of atension device. This tension device preferably consists of a loose friction ball '14 which is loosely housed within theiguide sleeve or tube so that 'the' filling thread pulls under and about the said ball with the result of providing a tension on the thread thatis quites'uflicient without danger of breaking or cutting, as is possible with other forms of 'frlctlon device.

A simplif ed form of the invention is 'suggested 1n F gs. 5, 6 and 7 "of the drawings,

and consists in "the use of a guidesleeve or tube 15 inserted obliquely within the shuttle head'l and having a top delivery eye 16 and bottomor inner receiving eye 17 these several :parts corresponding in position and function to the guide sleeve or'tube 5 al-- ready described. 'Also'in the modification referred to, "the guide sleeve 15 is provided in one side with a longitudinal threading slot 18 in communication with an eccen trically disposedjthreading slit 18 cut'into the top portion of the shuttle head ,atione side of the longitudinal vertical center there-- of, and thus performing the function of the slit 7 previously referred to. Furthermore, the guide sleeve or tube 15 is provided at one of the upper corners of the slit 18 with an inturned guard lip 19 that serves toprevent the filling thread from slipping back through the slot 18 after having been once threaded into the guide sleeve.

Another form of guide sleeve or tube is shown in Figs. 8 and 9 of the drawings and is designated by the reference number 20. This guide sleeve is formed with the lateral or side threading slot 21, and at both edges of said slot the sleeve or tube is formed with inturned guard lips 22 extending the full length thereof and serving to doubly guard the filling thread from slipping back through the slot 21.

Another form of construction is suggested in Figs. 10 and 11 of the drawings, and consists of a guide sleeve or tube 23 having one of its edges, at one side of the threading slot 24L out-turned as at 25 to assist in the threading operation, while, adjacent its delivery eye or upper end, the wall of the sleeve or tube is prick-punched inwardly as at 26 to provide an inside guard projection that holds the filling thread from working back through the threading slot.

In all of the forms of guide sleeves described, the same are mounted as illustrated in Figs. 5 and 6 of the drawings, and are in tended to carry out the same objects and to perform the same functions as the forms of the invention illustrated in Figs. 1 to at inclusive of the drawings.

From the foregoing it will be understood that changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim is:

l. A self-threading shuttle provided on the upper side of its head with a horizontal member having therein a top delivery eye, at one end of its bottom recess with a vertical member having a receiving eye whose horizontal axis is at right angles to the vertical axis of the top delivery eye, and at the top with a threading slit connecting the two eyes, and an upstanding inclined guide sleeve lying between and connecting the said two eyes, the said guide sleeve also having a side Copies of this patent may be obtained for threading slot in open communication with the threading slit exposed in the top of the shuttle head.

2. A self-threading shuttle including an angular member provided with a threading slit exposed at the top of the shuttle head and within the bobbin recess, and an upstanding guide sleeve arranged obliquely within the angle of said member and having its delivery eye disposed in the plane of the vertical longitudinal center of the shuttle body and at the top of the shuttle head, said sleeve being provided with aside threading slot in open communication with said slit.

3. A self-threading shuttle including an angular member provided with an angular threading slit exposed at the top of the shuttle head and disposed at one side of the plane of the vertical longitudinal center of the shuttle body, and a guide sleeve arranged obliquely within the angle of said member and having its top delivery eye disposed at the top, and centrally between the sides, of the shuttle body, said sleeve being provided with a side threading slot in open communication with said slit.

4. In a loom shuttle, the combination with a shuttle body, of an angular member provided with an angular slit and having top and bottom terminal eyes, an upstanding guide sleeve for the filling thread arranged within the angle of said member and communicating with said top and side terminal eyes, and a friction ball loosely housed within said sleeve.

5. A self-threading guide for loom shuttles comprising an angular bracket member having a threading slit, and a guide sleeve fitted within the angle of said bracket member and having a side threading slot.

6. A self-threading guide for loom shuttles consisting of an angular bracket plate having an angular threading slit and eyes at the terminals of said slit, and a guide sleeve fitted within the angle of the bracket plate and having its opposite ends communicating respectively with the separate eyes of the bracket plate.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

' FRED A. GUILLETTE.

W itnesses:

ALFRED J. DUMOULIN, Jr., J OSEPH TAYLOR.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

